Oracle Database 12c Release 2 – Long Identifiers

Prior to Oracle Database 12c Release 2 have a problem with long identifier name, for example, in 11.2 version you cannot create long name (max 30 Bytes) tables.  As you see, from screenshots length of table name column is maximum 30.

Creating table with long name

Table Name Column size 30

In Oracle Database 12c Release 2 changed the length of identifier names, and this change depends on the COMPATIBLE initialization parameter. Documentation says:

If (more...)

Oracle Database 12c Release 2 – SQL*Plus History Command


As you know that we can repeat our previous SQL*Plus commands in Windows CMD. But in UNIX based systems not supported command line history of SQL*PLus.  For this reason in UNIX and Linux, we used rlwrap utility to see the SQL*Plus command line history and quickly recall previous SQL*Plus commands.

With seconds release of Oracle Database 12c coming SQL*Plus history command for the history of the command line in Linux.

I want to share some example for this (more...)

OTN EMEA Tour 2017 Baku

OTN EMEA Tour 2017 took place.

Our city Baku also included this tour this year also. We (board of Azerbaijan Oracle User Group) organized the biggest event at Baku  (Park in Hotel) by sponsored Azercell Telecommunication Company. This year 3 Oracle ACE Director  Bjorn Rost (Germany), Gurcan Orhan (Turkey), Heli Helskyaho (Finland) and an Oracle ACE Rene Antunez (Mexica)  are our guests. Attendees of our event listened very interesting Oracle technical topics at the event.

Here is (more...)

I’m speaking at OTN EMEA Tour 2017 Baku



Local Oracle User Groups from the EMEA region are cooperating for the fourth year in a row to organize a tour of the region. The OTN EMEA Tour brings a star-studded cast, consisting of some of the world’s best Oracle ACEs, ACE Directors and Rock Star Speakers to the region. Azerbaijan Oracle User Group (AZEROUG) also joined EMEA Tour since last year (2016). This year also will be organize OTN EMEA Tour 2017 Baku (20th, (more...)

OTN Appreciation Day: DBMS_MONITOR

This is my little blogpost for part of OTN Appreciation day. For this reason Oracle bloggers share a blog post about himself favorite Oracle feature.  This great idea coming from Tim (@oraclebase).

I want share my favorite feature of Oracle Database.

How to Oracle working? - this question is interesting all of persons which is using Oracle database.

 Oracle trace files is very helpful for learn working mechanism of oracle processes.

Each server and (more...)

Oracle Database 12.2 New Features (Part I) – Application Express

As you know, Oracle Open World 2016 conferences continue at San Francisco (September 18-22, 2016).

At keynote Session, Larry Ellison (CTO of Oracle Corporation) annoucemented the Oracle Database Exadata Express Cloud Service on new database version 12.2. Here is released cloud documentation

There have very interesting little guide for new features of Oracle Database 12c Release 2.
Why littel , because it is not all features of Oracle Database 12c Release 2, have more interesting (more...)

TROUG Days 2016 Istanbul

I attended TROUG Days 2016 Istanbul which is organized Turkish Oracle Users Group as a speaker. It is very amazing conference. I meet my friends during conference.

I talked about In-Memory & Multitenant features of Oracle Database 12c. 
I want thank to organizers of  TROUG Days and attenders. I want share some my photos from conference: 














See you my friends at next events and conferences.

Best Regards
Mahir M. Quluzade

OTN Article: Oracle Database 12c: "Colección automática de estadísticas para cargas masivas"

Oracle Technology Network continue publish our article. My next article published OTN Latina in Spanish language.



You can read this article at : OTN Latina
Oracle Database 12c: "Colección automática de estadísticas para cargas masivas"


You can read this article also in English : http://otechmag.com/magazine/2015/winter/mahir-m.-quluzade.html


My special thanks my friends Joel and Sebastian ! 

Best Regards
Mahir M. Quluzade

TROUG Days Istanbul 2016 Agenda is online!

TROUG Days Istanbul 2016 Agenda now online, published at http://www.troug.org/wp-content/uploads/2016/02/Agenda.pdf

I'll speaking at TROUG Days Istanbul 2016, Apr 28th, 14:30 Hall A, ITU Teknokent.
My topic is Oracle In-Memory with Multitenant.





See you at TROUG Days Istanbul 2016!

Best Regards
Mahir

First meeting of AZEROUG in 2016 year!


I'm speaking at AZEROUG (Azerbaijan Oracle Users Group) Meeting February 27th, 2016 at Qafqaz University/ Baku, Azerbaijan. I'll speak about amazing Oracle Database option In-Memory.

See you !

Best Regards
Mahir 

OTech Magazine Winter 2015 Released

OTech Magazine issue Winter 2015 is the tenth – and last – issue of OTech Magazine – the independent Oracle technology magazine. In this last issue of OTech Magazine we offer you 10 highly technical articles on Oracle technology.




My "Automatic Gather Statistics for Bulk Loads" article also published in this issue. Automatically gathering statistics enhanced within Oracle Database 12c Release 1. My article covers this feature of Oracle Database 12c Release 1 with examples (more...)

OTN Article: Oracle Database 11g: “Client Failover” en “Standby Databases” (in Spanish Language)

Oracle Technology Network Latina started publish our new article series about Oracle Database 11g: Client Failover with  Standby Database

Part I: http://www.oracle.com/technetwork/es/articles/database-performance/client-failover-standby-database-2660858-esa.html














It is my first article published on OTN Latina after awarded Oracle ACE. 
My special thanks to my friend Oracle ACED Joel Perez (Venezuela) for all supports. 


Also you can watch video tutorial in this topic:



Best Regards
Mahir M. Quluzade

Oracle Database 12c: Statistics created as the data was loaded

As you know, Oracle Magazine July/Aug 2015 issue released. You can free subscribe to Oracle Magazine digital edition and you can read here or you can read technical  articles here.

I subscribed Oracle Magazine, in current issue have very interesting articles.

One of interesting article of Oracle Expert Tomas Kyte (as known AskTom) with title: On Learning from Mistakes


In this article Tom talks about Cost Based Optimizer and shown how optimizer learning from mistakes. (more...)

Database Schema as a Service – Oracle Cloud

Cloud computing is known for many things: cost effectiveness, flexibility, scalability.

Oracle Cloud provides several Oracle Database offerings. Choose between a single schema based service, or a virtual machine with a fully configured running Oracle Database Instance, or Exadata Service with all the database features, options, and workloads.
Oracle Cloud Provide Database schema Service as: 
  • 1 Schema on Oracle Database 11g
I don't know, can we request on Oracle Database 12c Release 1. But I (more...)

OTN Article: Oracle Database 12c In-Memory (Part I, Spanish / Portuguese)

Oracle Technology Network Latina started publish our new article series about Oracle Database In-Memory. This articles is first about In-Memory in OTN Latina articles.

First part of Oracle Database In-Memory article series published in 2 language (Spanish/Portuguese) same time.

In Spanish Language

http://www.oracle.com/technetwork/es/articles/database-performance/oracle-database-12c-in-memory-2595521-esa.html





In Portuguese Language

http://www.oracle.com/technetwork/pt/articles/database-performance/oracle-database-12c-in-memory-2595527-ptb.html





My special thanks to Joel Perez (Venezuela), Flavio Soares (Brazil) and Sebastián D'Alessandro (Argentina).

Regards
Mahir M. Quluzade

OTech Magazine Summer 2015 Issue #8 Released!

Independent Oracle Technology Magazine OTech Magazine Summer 2015 Issue Released. Second part of my Oracle Database In-Memory article series published in this issue.



You can read my article here 

I want thank to all author for all efforts. My special thanks to Douwe!


Regards
Mahir M. Quluzade


Oracle Database 12c – Active Duplication with RMAN (in Spanish Language)

Oracle Technology Network - OTN Latina published our "Pull-Based Active Duplication with RMAN" article series this month in Spanish Language. This article series covers new option of duplication with RMAN on Oracle Database 12c Release 1 (12.1.0.1) in 11 parts.



First part of article series described "how to duplicate database" and other parts showed different cases of CDB and PDBs duplication.You can read articles here


 Oracle Database 12c: Active Duplication con RMAN (more...)

Oracle Database 12c – Active Duplication with RMAN

Oracle Technology Network - OTN Latina published our new article series this month in Portuguese Language.

This article series covers new option of duplication: Pull-Based Active Duplication with RMAN on Oracle Database 12c Release 1 (12.1.0.1) in 11 parts.





First part of article series described "how to duplicate database" and other parts showed different cases of CDB and PDBs duplication.You can read articles here



 Oracle Database 12c: Duplicate em modo (more...)

OTech Magazine Winter 2014 Issue Released!

OTech Magazine Winter 2014 Issue is a more than one hundred page independent Oracle technology magazine especially designed for the holidays.  First part of my Oracle Database In-Memory article series also published in this issue.



You can download the Winter 2014 issue of OTech Magazine here

My special thanks to Oracle ACED Douwe Pieter van den Bos for all efforts. 

Best Regards
Mahir M. Quluzade

OTN Article Series: Oracle Data Guard 12c – Redo Gap Resolutions

OTN - Oracle Technology Network Latina America published our next technical articles series. This article series cover Redo Gap Resolutions in Oracle Data Guard 12c entitled in Portuguese language as Oracle Database 12c – Resolução de Redo Gap (Part I, II)  written by Joel Perez (Oracle ACED), Mahir M. Quluzade (OCE).


This article series consists of two parts. You can read articles from following links in Portuguese Language.




 Oracle Database 12c – Resolução (more...)